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Finding the Fourth Proportional to 269,679.16, 404,699.31 and 111,907.77

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Solution

The fourth proportional to 269,679.16, 404,699.31 and 111,907.77 is: 167,936.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,679.16 : 404,699.31 = 111,907.77 : x
  2. Step 2: Convert to fraction form
    269,679.16/404,699.31 = 111,907.77/x
  3. Step 3: Cross multiply
    269,679.16x = 404,699.31 × 111,907.77
  4. Step 4: Simplify right side
    269,679.16x = 45,288,997,302.64
  5. Step 5: Solve for x
    x = 45,288,997,302.64/269,679.16
  6. Step 6: Final answer
    x = 167,936.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.